Steam cracker units are facilities, in which a feedstock is thermally cracked through the use of steam to produce olefins, including ethylene and propylene.

The complex will also have downstream units to sell its products in domestic and international markets, according to a MoU which signed between Total and Iran’s National Petrochemical Company in 2016.

Total also signed a preliminary deal for development of Phase 11 of South Pars last year, becoming the first Western oil major to sign an energy agreement after the European Union and the United States eased sanctions as part of a pact to curb Iran’s nuclear ambitions.

If finalized, Total would operate the project with a 50.1 percent stake, China’s CNPC would own 30 percent through one of its subsidiaries and Iran’s Petropars would have 19.9 percent.

The South Pars Phase 11 project will have a production capacity of 1.8 billion cubic feet per day. The produced gas will be fed into Iran’s gas network.